<div>
    The <a href="http://download.oracle.com/javase/6/docs/api/java/util/Properties.html">properties file</a>
    is a collection of key,value pairs of the form key=value1,value2,...
    <br><br>
    Property files may reference other properties.  For example:
    <blockquote>
prop1=a,b,c,d,e<br>
prop2=${prop1},f,g,h
    </blockquote>
    The properties file can be placed anywhere on the file-system that Jenkins can access.
    <br><br>
    This property file has different meaning for multi-level select -- see the parameter type help for more info.
</div>
